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hour circle

(Encyclopedia)hour circle, in astronomy, a secondary axis in the equatorial coordinate system. The hour circle of a celestial body is the great circle on the celestial sphere that passes through both the body and t...

Stott, John Robert Walmsley

(Encyclopedia)Stott, John Robert Walmsley, 1921–2011, Anglican clergyman influential in 20th-century evangelical Christianity, b. London. He attended college and theological school at Cambridge and was ordained i...

Olaf I

(Encyclopedia)Olaf I (Olaf Tryggvason) ōˈläf trügˈväsōn [key], c.963–1000, king of Norway (995–1000), great-grandson of Harold I. His early life of exile and slavery is surrounded with romantic legend, a...

march, in music

(Encyclopedia)march, in music, composition intended to accompany marching. The only constant characteristics of a march are duple meter and a fairly simple rhythmic design. In mood, marches range from the moving de...

abacus, in architecture

(Encyclopedia)abacus ăbˈəkəs [key], in architecture, flat slab forming the top member of a capital. In classical orders it varies from a square form having unmolded sides in the Greek Doric, to thinner proporti...

Cassiopeia, in astronomy

(Encyclopedia)Cassiopeia, in astronomy, prominent northern constellation located almost directly opposite the Big Dipper across the north celestial pole. Five bright stars in the constellation form a rough W (or M)...

impressionism, in music

(Encyclopedia)impressionism, in music, a French movement in the late 19th and early 20th cent. It was begun by Debussy in reaction to the dramatic and dynamic emotionalism of romantic music, especially that of Wagn...

orders in council

(Encyclopedia)orders in council, in British government, orders given by the sovereign on the advice of all or some of the members of the privy council, without the prior consent of Parliament. Orders in council, fi...

Aquila, in astronomy

(Encyclopedia)Aquila [Lat.,=the eagle], equatorial constellation located N of Sagittarius and Capricornus, lying partly in the Milky Way. It is sometimes depicted as an eagle. It contains the bright star Altair (Al...

suspension, in chemistry

(Encyclopedia)suspension, in chemistry, mixture of two substances, one of which is finely divided and dispersed in the other. Common suspensions include sand in water, fine soot or dust in air, and droplets of oil ...